3935422856 has 16 divisors (see below), whose sum is σ = 7417153500. Its totient is φ = 1957515264.

The previous prime is 3935422819. The next prime is 3935422859. The reversal of 3935422856 is 6582245393.

It can be written as a sum of positive squares in 2 ways, for example, as 3688618756 + 246804100 = 60734^2 + 15710^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3935422856.

It is not an unprimeable number, because it can be changed into a prime (3935422859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1272881 + ... + 1275968.

Almost surely, 2^3935422856 is an apocalyptic number.

It is an amenable number.

3935422856 is a deficient number, since it is larger than the sum of its proper divisors (3481730644).

3935422856 is a wasteful number, since it uses less digits than its factorization.

3935422856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549048 (or 2549044 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 47.

The square root of 3935422856 is about 62732.9487271242. The cubic root of 3935422856 is about 1578.8121788602.

The spelling of 3935422856 in words is "three billion, nine hundred thirty-five million, four hundred twenty-two thousand, eight hundred fifty-six".